Jeeno Thitikul mastered Columbia Edgewater’s fast greens when the Portland Classic demanded her best putting under maximum pressure. Two shots behind entering Sunday, she attacked immediately, pouring in six birdies across her first seven holes. The noise around the final group changed with every make, and so did the shape of the tournament.
Then came the interruption. A bogey at No. 9 gave the field a breath and briefly stalled Thitikul’s charge. She answered one hole later with something far more decisive: a 25-foot eagle putt at the par-5 10th that restored her momentum in a single roll.
She would need all of it. Chanettee Wannasaen was racing toward a 63, while Arpichaya Yubol refused to disappear. By the closing stretch, every four-footer carried consequences. Thitikul survived with a clutch par at 16, made the birdie she needed at 17, then protected the lead at 18.
Her eight-under 64 produced a 22-under total and a one-shot victory. The score looked explosive, but the winning skill was much more delicate.
Sunday became a race to the hole
Columbia Edgewater does not encourage leaders to protect a number. At 6,541 yards and par 72 for the final round, the course gives LPGA players enough scoring clubs to create birdie opportunities in bunches.
Thitikul understood that equation before reaching the first tee. Afterward, she said her focus was simply to make birdies because Portland demands them from anyone trying to win. Her opening stretch backed up the mindset.
A birdie at the first started the run. After a par at No. 2, Thitikul made five straight birdies from Nos. 3 through 7. Six birdies in seven holes erased her overnight deficit before the Sunday drama had fully settled.
Those early putts also showed how quickly a contender had to understand Columbia Edgewater’s pace. The Poa annua and bentgrass surfaces were expected to run roughly 12.5 to 13 on the Stimpmeter during tournament week. At that speed, a slightly tentative stroke can expose more break, while a putt struck a fraction too firmly can leave an uncomfortable return.
Thitikul found that balance almost immediately. Her final round required only 26 putts, and she hit 14 greens while repeatedly creating realistic scoring chances. The course never asked her to choose between aggression and control. It demanded both.
The 25-footer that changed the tournament
Bogeys feel different in a shootout. Thitikul reached No. 9 after shredding the opening stretch, then finally surrendered a shot. In a tournament where birdies function almost like currency, one dropped stroke can feel closer to two.
No. 10 offered an immediate response. The par five measures 512 yards, and Thitikul knew a strong drive could open a route to the green in two. Instead, she found the left rough and lost some control over the angle. She attacked anyway, producing a superb second shot that reached the putting surface and left her roughly 25 feet for eagle.
Thitikul later acknowledged that she would have happily accepted birdie after the bogey at nine. The putt gave her much more.
On greens running near 13, a 25-footer demands a precise marriage of pace and break. Push the speed even slightly and the ball can hold its line too long. Let it die too early and the slope takes over before the cup.
Thitikul committed to the read, sent the ball toward the hole and watched it disappear. That eagle instantly restored what No. 9 had threatened to take away. She later described the moment as a turning point in the round, and it was easy to understand why. And she had not merely recovered a lost stroke. She had answered uncertainty with one of the boldest putts of her week.
The moment also captured Columbia Edgewater better than any generic discussion about tricky greens. The challenge was not simply identifying whether a putt moved left or right. Thitikul had to decide how much movement she wanted the ball to take, then match the stroke to that picture.
At tournament speed, the margin for error shrinks. Thitikul trusted the read anyway.
Approach position shaped every read
Fast greens alone do not make a course difficult. Predictable speed can actually help elite putters because the ball reacts consistently. Trouble arrives when pace, slope, approach position and tournament pressure collide.
That combination defines Columbia Edgewater.
Its greens do not rely on giant tiers or spectacular contours to create doubt. Instead, relatively compact putting surfaces force players to care about where an approach finishes. An iron settling underneath the cup can produce an aggressive birdie look. The same shot finishing above or across the slope can turn a similar distance into a defensive putt.
That changes the value of approach accuracy. Hitting the green counts statistically. Finding the correct section shapes everything that follows.
Thitikul’s Sunday showed both sides of the equation. Her ball striking created enough quality chances to shoot 64, but the putter still had to finish the work. Across the week, she made 27 birdies, more than anyone else in the field.
Those birdies were not decorative. Wannasaen shot 63 on Sunday and reached 21 under. Yubol closed with a 67 and joined her one stroke behind Thitikul. One loose read, one overhit comeback putt or one cautious stroke left short could have changed the champion.
That pressure explains why defensive putting rarely works in Portland. Leave too many birdie attempts short and somebody passes you. Attack every cup recklessly and the comeback putts begin piling up.
The winning balance sits between those extremes.
The back nine turned technique into nerve
Thitikul’s eagle did not end the fight. She bogeyed the par-5 12th, an especially painful mistake on a hole built to offer scoring. A birdie at 14 repaired some of the damage, but Wannasaen kept applying pressure from ahead.
By the time Thitikul reached the 15th green, the tournament had tightened again. Her caddie told her she had been pulled back into a tie. Thitikul had deliberately avoided watching the leaderboard, so the information changed the emotional temperature immediately.
Early in the round, she had been chasing. Now every putt could decide the trophy.
At No. 16, that pressure arrived in the form of a par save. It did not change her score, but Thitikul later singled out the putt as one of the defining moments of her Sunday. A miss would have handed momentum straight back to the players around her. Instead, she committed to the stroke, watched it fall and walked toward the 17th tee without surrendering anything.
One hole later, survival was no longer enough. Thitikul reached the 17th knowing another birdie could separate her from the Thai charge crowding the top of the leaderboard. Her read had to be aggressive without becoming reckless. On surfaces this quick, that distinction can live in the smallest change of pace.
She sent the putt on its line, watched it curl into the cup and moved to 22 under, giving herself the lead for good. It lacked the visual drama of the 25-footer at No. 10, but it carried greater consequence. Par would have kept the door open. Birdie forced everyone else to answer.
Thitikul had spent most of Sunday attacking Columbia Edgewater. At the 18th, the calculation changed again. She no longer needed another spectacular make. She needed one clean finish.
After missing the green, Thitikul got up and down for par, protecting the one-shot advantage she had created moments earlier. The closing sequence had demanded three completely different putting states: save the round at 16, seize the tournament at 17, then protect it at 18.
She handled all three. That was the championship.
Portland rewards aggressive patience
The phrase sounds contradictory until Columbia Edgewater gets a leaderboard involved.
Players must hunt birdies because the winning score routinely falls deep into red numbers. Thitikul reached 22 under, while the player immediately behind her shot 63 in the final round and still lost.
That environment forces aggression, but the greens demand patience. A player cannot manufacture extra break because she wants birdie more badly. She cannot force a downhill putt to stop because the leaderboard has tightened. The pressure changes every few minutes. The physics under her feet do not.
Thitikul’s Sunday worked because her emotional pace never outran the pace of the greens.
She did not even enter the week feeling mechanically bulletproof. During practice rounds, her caddie repeatedly checked the putting stroke, and Thitikul later acknowledged those doubts. What carried her through Sunday was routine. She stayed committed to the next read rather than drifting toward the final result.
That detail gives the victory more texture. The champion did not arrive in Portland with a perfect stroke and spend four days proving everyone else helpless. She found the stroke when the tournament demanded it most.
The Portland Classic keeps asking the same question
Columbia Edgewater can look generous on a leaderboard. Birdies pile up, par fives invite attacks, and shorter approaches create chances that elite players expect to convert. Yet a champion can shoot 64 and still spend the final three holes fighting for every inch.
That scoring environment makes Portland Classic green reading different from survival golf at a major championship. Players cannot simply avoid three-putts and wait for somebody else to collapse. They have to make putts.
Thitikul made six birdies before reaching the eighth tee. She answered a bogey with a 25-foot eagle. With the lead suddenly level late, she saved par at 16, reclaimed control at 17 and shut the door at 18.
Those four hours revealed the real blueprint. Control the approach well enough to shape the next putt. Understand how a ball behaves when Columbia Edgewater approaches 13 on the Stimpmeter. Match line and pace instead of treating them as separate decisions.
Above all, trust the stroke once the leaderboard makes every inch feel heavier.
The final number was 64. The winning margin was one.
At Columbia Edgewater, that difference can live inside the smallest space in golf: the fraction of an inch between the line a player sees and the pace she actually delivers.
READ ALSO: Columbia Edgewater’s Hidden Geometry Makes Driving Position Rule the Portland Classic
FAQs
How did Jeeno Thitikul win the 2026 Portland Classic?
Thitikul shot a final-round 64 and finished at 22 under. She beat Chanettee Wannasaen and Arpichaya Yubol by one stroke.
What did Jeeno Thitikul shoot in the final round?
She shot eight-under 64. Her round included eight birdies, an eagle and two bogeys.
How fast were the greens at Columbia Edgewater?
The Poa annua and bentgrass greens were expected to run roughly 12.5 to 13 on the Stimpmeter, demanding precise control of pace and break.
What was Jeeno Thitikul’s biggest putt in Portland?
Her 25-foot eagle putt at No. 10 changed the momentum after a bogey at nine. A late birdie at 17 then supplied the winning margin.
How many putts did Jeeno Thitikul need in the final round?
Thitikul needed only 26 putts during her Sunday 64. She also hit 14 greens while creating birdie chances throughout the round.
Tracking stats and settling debates. If there is a scoreboard, I am watching it.
